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Dye lasing arrangement including an optical assembly for altering the cross-section of its pumping beam and method

Patent ·
OSTI ID:868471
 [1];  [2]
  1. Pleasanton, CA
  2. Alburquerque, NM
+ Show Author Affiliations
An optical assembly is disclosed herein along with a method of operation for use in a dye lasing arrangement, for example a dye laser oscillator or a dye amplifier, in which a continuous stream of dye is caused to flow through a given zone in a cooperating dye chamber while the zone is being illuminated by light from a pumping beam which is directed into the given zone. This in turn causes the dye therein to lase and thereby produce a new dye beam in the case of a dye laser oscillator or amplify a dye beam in the case of a dye amplifier. The optical assembly so disclosed is designed to alter the pump beam such that the beam enters the dye chamber with a different cross-sectional configuration, preferably one having a more uniform intensity profile, than its initially produced cross-sectional configuration. To this end, the assembly includes a network of optical components which first act on the beam while the latter retains its initially produced cross-sectional configuration for separating it into a plurality of predetermined segments and then recombines the separated components in a predetermined way which causes the recombined beam to have the different cross-sectional configuration.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
DOE Contract Number:
W-7405-ENG-48
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Patent Number(s):
US 5148442
OSTI ID:
868471
Country of Publication:
United States
Language:
English

References (3)

Astigmatic resonator for closed-cavity-mode filling enhancement journal January 1985
Etude comparative de différents dispositifs permettant de transformer un faisceau laser de puissance avec une répartition énergétique gaussienne en une répartition uniforme journal January 1986
Optical beam shaping of a high power laser for uniform target illumination journal January 1985

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Related Subjects

/372/359/
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